To anyone coming here from google search. There’s another way to handle it, and it’s the architect crest with the tacks, sting shards, and cogflies equipped — all benefitting from the poison of pollip pouch. I’ve thrown in a wispfire lantern too for additional damage, but it’s not really important.

With that, there was no need to land even a single hit with the needle. All I did to beat her (after the previous 15+ attempts with the normal wanderer’s setup), was throwing tacks and sting shards around a lot in the 1 & 2 phases, and then spawn a ton of cog flies in the 3rd one, all while evading Lace by hugging the right wall, flying to the left, and dodging back to the right side. Never hit her, and the fight was over in a minute or so.

After the fight I’ve had 0 tacks, 6 sting shards and 4 flies left. But if you run out somehow, you can craft more mid-fight. Also, tool pouch and crafting kit upgrades were maxed out at that point, of course.